We have accomplished the first total synthesis of (+/-)-hinckdentine A (1). The key steps are m-CPBA oxidation of 2-arylindole followed by acid-mediated Mannich-type C-C bond formation of 2-hydroxyindolin-3-one, seven-membered ring closure, and regioselective tribromination.
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Higuchi et al. (2008) studied this question.
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